﻿////////////////////////////////////////////////////////////////////////////
//
// Copyright 2021 Realm Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
////////////////////////////////////////////////////////////////////////////

using System.ComponentModel;
using System.Runtime.CompilerServices;

namespace Benchmarks.ViewModel
{
    public class BaseViewModel : INotifyPropertyChanged
    {
        public event PropertyChangedEventHandler? PropertyChanged;

        protected void OnPropertyChanged([CallerMemberName] string name = "")
        {
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(name));
        }

        protected bool SetProperty<T>(ref T field, T value, [CallerMemberName] string propertyName = "")
        {
            if (Equals(field, value))
            {
                return false;
            }

            field = value;

            OnPropertyChanged(propertyName);
            return true;
        }

        public virtual void OnAppearing()
        {
        }

        public virtual void OnDisappearing()
        {
        }
    }
}
